All are basically right here.....your card is a "storage" transfer what i like to call it... Franks is a true wet sheet....
Definitely tols are the most common, you guys hit it on the head.....
each case needs to be reveiwed to get a "feel" or probability of pre/post factory...
You'll notice them more of course on the light back ground cards more frequently....
true wet sheets definitely add value inmo.....depends on how dramatic they are ....i think the real deep ones are super cool, and beleive it or not, pretty rare(the real pronounced ones) i have scans, and i'll try to post...
easiest to acquire- yellow background tols.....
harer...deep ink on darker backgrounds...
i think freaky wet stacked backs are real cool....i'll try to post some scans...
freaky deaky t206 are what i'm into so i'm a little biased here..